//缩放到包围盒
function zoomToBoundingBox(boundingbox) {
    _viewer.zoomToBoundingBox(boundingbox);
}

//缩放到单个构件
function zoomToComponent(id) {
    _viewer.getComponentProperty(id, function (data) {
        var boundingBox = data.boundingBox;//获取构件包围盒子
        _viewer.zoomToBoundingBox(boundingBox);//定位到该包围盒子
    });
}

//缩放到选中构件
function zoomToSelectedComponents() {
    _viewer.zoomToSelectedComponents();
}

//缩放并选中多个构件

function zoomAndSelectComponents(ids) {
    _viewer.setSelectedComponentsById(ids);
    _viewer.zoomToSelectedComponents();
}